Stark 5 pcs English Step Drill Bits Set Pasay

This five piece set of cobalt coated M2 high speed steel bits replaces 50 individual drill bits. Just drill deeper to widen the diameter. That means you won't have to constantly change bits when drilling the range of holes necessary for all different kinds of jobs. • Cobalt coating reduces friction and lasts longer than uncoated bits• High speed steel for longer service life• Two-flute design enables a faster and smoother cutting• Automatically deburrs holes while drilling• 3-sided shank prevents slip in drill chuck• Includes a protective aluminum case